Andoird 4.4 KitKat StatusBar

SystemServer

We can hide StatusBar, settiing of "config.disable_systemui" .

https://android.googlesource.com/platform/frameworks/base/+/android-4.4_r1/services/java/com/android/server/SystemServer.java

        boolean disableSystemUI = SystemProperties.getBoolean("config.disable_systemui", false);

            if (!disableSystemUI) {
                try {
                    Slog.i(TAG, "Status Bar");
                    statusBar = new StatusBarManagerService(context, wm);
                    ServiceManager.addService(Context.STATUS_BAR_SERVICE, statusBar);
                } catch (Throwable e) {
                    reportWtf("starting StatusBarManagerService", e);
                }
            }

SystemUi

Delete "tablet" of folder. so not be used on JB!!

https://android.googlesource.com/platform/frameworks/base/+/android-4.4_r1/packages/SystemUI/src/com/android/systemui/statusbar/